Results 61 to 70 of about 3,265,657 (290)

Intensive Broadband Reverberation Mapping of Fairall 9 with 1.8 yr of Daily Swift Monitoring

open access: yesThe Astrophysical Journal
We present 1.8 yr of near-daily Swift monitoring of the bright, strongly variable Type 1 active galactic nucleus (AGN) Fairall 9. Totaling 575 successful visits, this is the largest such campaign reported to date.
R. Edelson   +7 more
doaj   +1 more source

Galáxias post-starburst no universo local [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2014Galáxias post-starburst (PSB) apresentam espectros com fortes linhas de absorção na série ...
Werle, Ariel
core  

Spatially resolved spectroscopy of Coma Cluster early‐type galaxies. IV. Completing the data set [PDF]

open access: yes, 2008
The long-slit spectra obtained along the minor axis, offset major axis, and diagonal axis are presented for 12 E and S0 galaxies of the Coma Cluster drawn from a magnitude-limited sample studied before.
BENDER R.   +20 more
core   +1 more source

Objective-prism and slit-spectra redshifts in a study of the distribution of galaxies [PDF]

open access: yes, 2014
A thorough and detailed investigation into the accuracy, reliability and consistency of the objective-prism redshift technique with changes in plate material, measuring machine and reduction techniques has been undertaken.
Parker, Quentin Andrew
core   +2 more sources

Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution

open access: yesThe Astrophysical Journal
Infrared-faint radio sources (IFRSs) are believed to be a rare class of radio-loud active galactic nuclei (AGNs) characterized by their high radio-to-infrared flux density ratios of up to several thousand.
Yihang Zhang   +6 more
doaj   +1 more source

Human Sustainability Leadership and Employee Wellbeing (Flourishing) in Organizations

open access: yesSustainable Development, EarlyView.
ABSTRACT This qualitative case study research examines how designing for human sustainability leadership (HSL) affects employee wellbeing (flourishing) (HWBF) in organizations. It is undertaken at a university in the United Kingdom including academics and administrators.
Elli Meleti
wiley   +1 more source

Exploring the star formation histories of galaxies [PDF]

open access: yes, 1999
In this thesis, I explore the star formation histories of both spiral and elliptical galaxies. In Part 1,1 present an in-depth study of the star formation histories of spiral galaxies with a wide range of properties. Optical and near-infrared colours are
Bell, Eric Findlay, Bell, E.F.
core  

Star clusters in unperturbed spiral galaxies [PDF]

open access: yes, 2008
Stars do not form in isolation, they form in groups known as star clusters. Star clusters are seen in a wide range of galaxies and environments. Their presence reveals the history of the host galaxy and the processes of its star formation.
Mora, Marcelo D.
core   +1 more source

AGN STORM 2. VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations

open access: yesThe Astrophysical Journal
We observed the Seyfert 1 galaxy Mrk 817 during an intensive multiwavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lines seen in the Hubble Space Telescope/Cosmic Origins Spectrograph spectra,
Maryam Dehghanian   +41 more
doaj   +1 more source

Merging Galaxies with Active Nuclei [PDF]

open access: yesSymposium - International Astronomical Union, 1999
We are investigating a sample of nearby interacting and merging galaxies showing starburst properties and/or nonthermal nuclear activity (e.g. Mrk 231, Mrk 739, Mrk 1027, NGC 2992, Arp 92).
openaire   +1 more source

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